#!/bin/bash

#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

source _common.sh
source /usr/share/yunohost/helpers

#=================================================
# CHECK IF THE APP CAN BE INSTALLED
#=================================================

# Testing if ZeroTier is installed
yunohost app list | grep -q "id: zerotier" || ynh_die "ZeroTier is needed, but it is not installed. There is a package for that!"

#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..." --weight=2

# Prevent ERR_OSSL_EVP_UNSUPPORTED error
export NODE_OPTIONS=--openssl-legacy-provider
# Prevent yet another Node and Corepack madness
export COREPACK_ENABLE_DOWNLOAD_PROMPT=0

ynh_install_nodejs --nodejs_version=$nodejs_version
ynh_use_nodejs
$nodejs_path/corepack enable
$nodejs_path/corepack prepare yarn@stable --activate

#=================================================
# APP "BUILD" (DEPLOYING SOURCES, VENV, COMPILING ETC)
#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=1
ynh_setup_source --dest_dir="$install_dir"

ynh_script_progression --message="Building the backend..." --weight=3
pushd $install_dir/backend
	$nodejs_path/yarn install
popd

ynh_script_progression --message="Building the frontend..." --weight=3
pushd $install_dir/frontend
	$nodejs_path/yarn install
	$nodejs_path/yarn build
popd

chown -R $app:$app "$install_dir"
chown $app:www-data "$install_dir"
chown $app:www-data "$install_dir/frontend"
chown -R $app:www-data "$install_dir/frontend/public"

#=================================================
# SYSTEM CONFIGURATION
#=================================================
ynh_script_progression --message="Adding system configurations related to $app..." --weight=1

ynh_add_nginx_config

ynh_add_systemd_config

yunohost service add $app --description="ZeroTier Controller Web UI"

#=================================================
# APP INITIAL CONFIGURATION
#=================================================
# ADD A CONFIGURATION
#=================================================
ynh_script_progression --message="Adding a configuration file..." --weight=1

# Let's retrieve information on the ZeroTier installation
zt_token="$(</var/lib/zerotier-one/authtoken.secret)"
zt_addr="localhost:$(</var/lib/zerotier-one/zerotier-one.port)"

ynh_add_config --template="env" --destination="$install_dir/.env"

chmod 400 "$install_dir/.env"
chown $app:$app "$install_dir/.env"

#=================================================
# GENERIC FINALIZATION
#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=1

ynh_systemd_action --service_name=$app --action="start" --log_path="systemd"

#=================================================
# END OF SCRIPT
#=================================================
ynh_script_progression --message="Installation of $app completed" --last